Why Tires Lose Pressure At Different Rates
Each weekend I top off my tires for the coming week of commuting. For the past few months my floor pump always registers the front tires around 55 psi and the rear around 40. I then fill them to about 65.
Has anyone else noticed that their tires are not at the same pressure after a few days? Is there some reason that rear tires in general may lose more air than front tires, perhaps the added weight? Obviously my rear tube may leak ever more slightly than the front but assuming the tubes are in equal condition is there some other reason why a rear tire may lose more pressure than a front tire?